WBO, WBA and IBF light heavyweight world champion Sergey Kovalev (28-0-1, 25 KOs) demolished overmatched challenger Nadjib Mohammedi (37-4, 23 KOs) on Saturday night at the Mandalay Bay Events Center, Las Vegas.
The Russian dropped Mohammedi in the second round before finishing him off in the third round of a one-sided encounter.
Kovalev was landing hard shots from the opening bell and soon had the Frenchman in all kinds of trouble during the second round.
The champion sent his opponent…